|Complete 1 chapter in co-op on any difficulty (Marcus or Dom)|
See "Friends With Benefits" for more info.
|Rate this achievement||Average Rating (Based on 2 votes)|
|You need to register before being able to post comments.|
|You need to log in or register to use MyAchievements.|
|You need to log in or register to rate games.|
User Score is based on 6947 user ratings.